Hi everyone!
Good news: I have a bluetooth tablet working under the Linux HID support.
Bad news: it's far from usable.
It's called Wacom Graphire Bluetooth. So far I got it connected if I
switch off authentication and encryption. Of course it works only mouse
like but limited:
-pointer is moving a bunch of pixels in one go (on my 17" I have 1cm
jumps) - I expected pixel by pixel moves like my mouse does.
-If the device stays connected a while (or maybe after some kind of
input), the events get processed slower
and queued. E.g. If I move the mouse/pen rapidly, so it does on the
screen, but after a while the pointer on the screen still starts moving
with my movements, but slower, and when I stop after some crazy testing
I can see the pointer on the screen still doing it's duty.
Switching off and on the table seems to reset the issue.
-Click/Button events provoke pointer movement, but finer than the "grid"
mentioned. E.g. click --> pointer 2 pixels to the right, click --> pointer
4 pixels up and one pixel right.
Any ideas?
Thanks,
Robert
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Hi Robert,
> Aehm, sorry for being unclear, my question was: Where
> are the huge differences between
> 2.6.12-mh3 and
> 2.6.13-mh1
if you look only to HID then there is no difference.
> A new question: Do I see it right that there are at the moment two HID
> interpreter in a patched kernel: one for USB and one for Bluetooth? Are
> there already differences between them? (Why? Which?)
The Bluetooth HID is derived from the USB HID, but without the hiddev
support and a lot of things stripped out. It is basically a proof of
concept.
> > > Where is the driving force
> > > behind a generic HID driver? Here or more with the USB guys? <-:
> > > I fear that it will take some six month or longer. - I will probably dig
> > > into the HID bluetooth code to get the Wacom working ...
> > > ... and do some adaptions when the generic driver arises.
> >
> > I think the force for that have to be driven by me. We all agreed on how
> > this should be done, but there are some things pending that I like to
> > see merged first mainline (subclass support and sysfs integration)
> > before I look at it again.
>
> Hm... Would you approve some HID hacking on your -mh patches for the
> meantime? I'm also interested in a generic HID driver but don't want to
> stand still until it appears. - Later joining wanted.
Send in patches against the latest -mh patch.
Regards
Marcel
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> > > > I'm using debian and it's kernel-making tool but the latest prepared
> > > > kernel was 2.6.12. I patched it with 2.6.12-mh3. There does not seem
> > > > to be much Bluetooth/HID related changes between it and 2.6.13 with
> > > > patch. - Am I wrong?
> > >
> > > yes, you are.
> >
> > Hey, that answer was to short... (-: I found no changelog for the 2.6
> > kernel series patches and I compared the patch 2.6.12-mh3 with the
> > 2.6.13 one (with my two human eyes). - What changed so dramatically?
>
> the -mh patches contain a specific version for the hidp driver with
> report protocol support that is not mainline. It will also never get
> into mainline, because the solution is the generic HID driver.
Aehm, sorry for being unclear, my question was: Where
are the huge differences between
2.6.12-mh3 and
2.6.13-mh1
A new question: Do I see it right that there are at the moment two HID
interpreter in a patched kernel: one for USB and one for Bluetooth? Are
there already differences between them? (Why? Which?)
> > Where is the driving force
> > behind a generic HID driver? Here or more with the USB guys? <-:
> > I fear that it will take some six month or longer. - I will probably dig
> > into the HID bluetooth code to get the Wacom working ...
> > ... and do some adaptions when the generic driver arises.
>
> I think the force for that have to be driven by me. We all agreed on how
> this should be done, but there are some things pending that I like to
> see merged first mainline (subclass support and sysfs integration)
> before I look at it again.
Hm... Would you approve some HID hacking on your -mh patches for the
meantime? I'm also interested in a generic HID driver but don't want to
stand still until it appears. - Later joining wanted.
> Check the mailing list archive for comments about that.
What search keywords do you recommend?
Bye,
Robert
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Hi Robert,
> > > I'm using debian and it's kernel-making tool but the latest prepared
> > > kernel was 2.6.12. I patched it with 2.6.12-mh3. There does not seem
> > > to be much Bluetooth/HID related changes between it and 2.6.13 with
> > > patch. - Am I wrong?
> >
> > yes, you are.
>
> Hey, that answer was to short... (-: I found no changelog for the 2.6
> kernel series patches and I compared the patch 2.6.12-mh3 with the
> 2.6.13 one (with my two human eyes). - What changed so dramatically?
the -mh patches contain a specific version for the hidp driver with
report protocol support that is not mainline. It will also never get
into mainline, because the solution is the generic HID driver.
> > > Other question: does BlueZ support HID get/set report feature?? How to
> > > interface it?
> >
> > Not really at the moment. They will come with generic HID driver sometime
> > in the future.
>
> The Wacom Graphire Bluetooth needs it... Where is the driving force
> behind a generic HID driver? Here or more with the USB guys? <-:
> I fear that it will take some six month or longer. - I will probably dig
> into the HID bluetooth code to get the Wacom working ...
> ... and do some adaptions when the generic driver arises.
I think the force for that have to be driven by me. We all agreed on how
this should be done, but there are some things pending that I like to
see merged first mainline (subclass support and sysfs integration)
before I look at it again. Check the mailing list archive for comments
about that.
Regards
Marcel
-------------------------------------------------------
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> > I'm using debian and it's kernel-making tool but the latest prepared
> > kernel was 2.6.12. I patched it with 2.6.12-mh3. There does not seem
> > to be much Bluetooth/HID related changes between it and 2.6.13 with
> > patch. - Am I wrong?
>
> yes, you are.
Hey, that answer was to short... (-: I found no changelog for the 2.6
kernel series patches and I compared the patch 2.6.12-mh3 with the
2.6.13 one (with my two human eyes). - What changed so dramatically?
> > Other question: does BlueZ support HID get/set report feature?? How to
> > interface it?
>
> Not really at the moment. They will come with generic HID driver sometime
> in the future.
The Wacom Graphire Bluetooth needs it... Where is the driving force
behind a generic HID driver? Here or more with the USB guys? <-:
I fear that it will take some six month or longer. - I will probably dig
into the HID bluetooth code to get the Wacom working ...
... and do some adaptions when the generic driver arises.
Any ideas?
Thanks,
Robert
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Hi Robert,
> > are you using the -mh patch for the latest 2.6 kernel?
>
> I'm using debian and it's kernel-making tool but the latest prepared
> kernel was 2.6.12. I patched it with 2.6.12-mh3. There does not seem
> to be much Bluetooth/HID related changes between it and 2.6.13 with
> patch. - Am I wrong?
yes, you are.
> Other question: does BlueZ support HID get/set report feature?? How to
> interface it?
No really at the moment. The will come with generic HID driver sometime
in the future.
Regards
Marcel
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> are you using the -mh patch for the latest 2.6 kernel?
I'm using debian and it's kernel-making tool but the latest prepared
kernel was 2.6.12. I patched it with 2.6.12-mh3. There does not seem
to be much Bluetooth/HID related changes between it and 2.6.13 with
patch. - Am I wrong?
Other question: does BlueZ support HID get/set report feature?? How to
interface it?
Thanks,
Robert
-------------------------------------------------------
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_______________________________________________
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Hi Robert,
> Good news: I have a bluetooth tablet working under the Linux HID support.
> Bad news: it's far from usable.
>
> It's called Wacom Graphire Bluetooth. So far I got it connected if I
> switch off authentication and encryption. Of course it works only mouse
> like but limited:
>
> -pointer is moving a bunch of pixels in one go (on my 17" I have 1cm
> jumps) - I expected pixel by pixel moves like my mouse does.
> -If the device stays connected a while (or maybe after some kind of
> input), the events get processed slower
> and queued. E.g. If I move the mouse/pen rapidly, so it does on the
> screen, but after a while the pointer on the screen still starts moving
> with my movements, but slower, and when I stop after some crazy testing
> I can see the pointer on the screen still doing it's duty.
>
> Switching off and on the table seems to reset the issue.
>
> -Click/Button events provoke pointer movement, but finer than the "grid"
> mentioned. E.g. click --> pointer 2 pixels to the right, click --> pointer
> 4 pixels up and one pixel right.
are you using the -mh patch for the latest 2.6 kernel?
Regards
Marcel
-------------------------------------------------------
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